The speed and direction of an object
What is velocity?
What are the 3 types of motion graphs
What are speed/ time, position/ time and acceleration/ time
an object is traveling at 20 meters per second, for 6 seconds, what distance has it covered
120 meters
expressed as a2 + b2 = c2
What is hanging out with our good friend pythagoras?
True or False: North is neither a scalar nor a vector.
True
Any measurement that contains a magnitude but no direction
What is a Scalar?
Sketch 3 motion graphs that represent an object not in motion.
Answer on board
a car is traveling at 50 mph 30 mins later the car is traveling at 35 mph, what is the car's acceleration?
-30 mi/hr2
The equation for finding speed
What is distance divided by time?
the greek symbol alpha means
Any change in velocity
What is acceleration?
Sketch 3 Graphs of an object that is slowing down
Answer on board
What is the angle of a right triangle with the hypotenuse= 30 meters and the adjacent= to 20 meters?
48 degrees
To correctly find the area of a triangle
1/2 base * height
The greek symbol delta means
change in
Distance is the length that an object travels, displacement is the difference between the final position and the initial position.
Jim walks 400m North and then he turns East and walk 250 meters. What is his displacement?
471 m north of east
Tangent is
Opposite/ Adjacent
Jim walks 400m North and then he turns East and walk 250 meters. What is his distance?
650 meters
The formula for gravitational force is Fg=m1*m2/r2 What is the relationship between Fg and r?
Indirect Square
Find the distance during part C
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120 meters
a baseball was hit with a force of 800N 30 degrees about the horizontal. What is the vertical and horizontal component of this force?
vertical= 400N
Horizontal= 693N
Explain how slope of a velocity time graph is the same as acceleration
the formula for slope is y2-y1/x2-x1. the formula for acceleration is vf-vi/tf-ti. If you take the change in rise divide by the change in run you have calculated the change of velocity over the change in time.
What runner won the race and what was his speed?
Albert; 8.3 m/s